EEE-HD1A472AM Panasonic Capacitor Polarised (Capacitor Al Electrolytic) In Stock
The Panasonic EEE-HD1A472AM is a surface-mount aluminum electrolytic capacitor rated at 10 V DC with a 4700 µF capacitance and ±20% tolerance, meeting AEC-Q200 automotive reliability standards. Key specs include a compact SMD form factor optimized for power supply decoupling and bulk energy storage in automotive and industrial applications. Available in stock with worldwide shipping for automotive-grade PCB assembly projects.
- Manufacturer
- Panasonic
- Package
- Capacitor Al Electrolytic
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- EEE-HD1A472AM Datasheet PDF
- Category
- Capacitor Polarised
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4700 µF capacitance at 10 V DC provides large bulk energy storage in a compact SMD package for power rail decoupling
- AEC-Q200 automotive qualification ensures reliable operation across a wide temperature range in harsh environments
- ±20% tolerance meets standard electrolytic capacitor specifications for bulk filtering and energy reservoir designs
- SMD aluminum electrolytic construction enables automated reflow assembly on high-density automotive and industrial PCBs
Applications
The EEE-HD1A472AM is used in automotive power supply modules, ECU voltage regulators, and DC-DC converter output stages requiring 4700 µF bulk capacitance at 10 V. Its AEC-Q200 qualification makes it suitable for under-hood automotive electronics operating in temperatures from -40°C to +105°C. The capacitor also finds use in industrial motor drives and power inverters where large capacitance is needed to smooth low-frequency voltage ripple on 10 V output rails.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What capacitance and voltage rating does EEE-HD1A472AM provide, and in which power supply stage is it most useful?
The EEE-HD1A472AM is rated at 4700 µF and 10 V DC, making it most useful as a bulk output capacitor on the secondary side of DC-DC converters and LDO regulators supplying 5 V to 9 V rails. This large 4700 µF value provides substantial hold-up energy and reduces low-frequency ripple in switched-mode power supply designs.
Why does AEC-Q200 qualification matter for EEE-HD1A472AM in an automotive ECU design?
AEC-Q200 qualifies passive components for automotive use by subjecting them to rigorous temperature cycling from -40°C to +125°C, humidity stress at 85°C/85% RH for 1000 hours, and mechanical shock testing. Using an AEC-Q200 rated 4700 µF capacitor in an ECU power supply ensures the component meets automotive OEM reliability standards without requiring individual lot qualification testing.
How does the ±20% tolerance of EEE-HD1A472AM affect filter circuit design compared to a ±10% tolerance capacitor?
A ±20% tolerance means the actual capacitance can range from 3760 µF to 5640 µF. For bulk decoupling and energy storage at 10 V, this range is acceptable since the design only requires that capacitance exceeds a minimum threshold (e.g., 3500 µF) to limit voltage droop under a 10 A load transient to under 50 mV. Precision filter circuits requiring exact cut-off frequencies below 10 Hz should use ±10% or tighter-tolerance capacitors instead.
Can EEE-HD1A472AM be used in a 12 V automotive battery-backed hold-up circuit, given its 10 V rating?
No, using a 10 V rated capacitor directly on a 12 V automotive rail violates the voltage derating rule, which typically requires at least 20% voltage margin (meaning the capacitor rating should be ≥15 V for a 12 V rail). Exceeding the 10 V rating accelerates electrolyte degradation and can cause leakage or catastrophic failure within a few hundred operating hours in a 12 V system.
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